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发明公开
CN104600727A 一种基于数理统计和小波分解算法的微电网中混合储能的容量配置方法 无效 - 驳回

一种基于数理统计和小波分解算法的微电网中混合储能的容量配置方法
摘要：
本发明公开了一种基于数理统计和小波分解算法的微电网中混合储能的容量配置方法，包括根据微电网系统中的小水电单元、光伏单元、风力发电单元和负荷的实测样本数据，得到储能单元的理论功率需求信号；采用小波分解算法，分析所述理论功率需求信号的频谱特征；初步确定混合储能的分界频率fN；根据分界频率fN，得到混合储能的功率和容量；基于数理统计理论对储能配置结果进行置信水平和经济性评价，如果评价结果不符合要求，则转向确定混合储能的分界频率fN步骤，如果评价结果符合预期目标结束。本方法对于节约一次性投资，提高微电网的供电可靠性，具有现实意义。
摘要（英）：

The invention discloses a method for configuring capacity of hybrid energy storage in a micro-grid based on mathematical statistic and a wavelet decomposition algorithm. The method comprises the steps of obtaining a theoretical power demand signal of an energy storage unit according to a small hydropower unit, a photovoltaic unit, a wind power generation unit and load of a micro-grid system, adopting the wavelet decomposition algorithm to analyze the frequency spectrum feature of the theoretical power demand signal, preliminarily determining the dividing frequency fN of hybrid energy storage, obtaining the power and capacity of the hybrid energy storage according to the dividing frequency fN, conducting confidence level and economical evaluation on an energy storage configuration result based on the mathematical statistic, determining the dividing frequency fN of the hybrid energy storage if an evaluation result does not meet the requirement and completing the step if the evaluation result meets the requirement. The method has practical significance on saving of one-time investment and improvement of power supply reliability of the micro-grid.

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